HOW TO: How to Troubleshoot SNMP Security Issues (200885)

SUMMARY

If Simple Network Management Protocol (SNMP) is not responding and you have implemented SNMP security, you can use the steps in this article to help you troubleshoot the issue.

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Troubleshooting SNMP Security Issues

1. Check the community name. Community names are case sensitive. It is general practice to use uppercase letters for community names.
2. If you remove all the community names, including the default name (Public), SNMP does not respond to any community names presented.
3. If you change existing SNMP settings, your changes take effect immediately. If you are configuring SNMP for the first time, you must restart the SNMP service before the settings take effect.
4. Check to see if the host is set to accept SNMP packets only from specific hosts.
5. Check to see if the Send Authentication Trap option is enabled, and verify the list of trap destinations.
6. Check the permission level of both community rights and the Management Information Base (MIB) access variable. The most restricted setting is used.

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